EP1061384A1 - Reseau de fibres optiques - Google Patents

Reseau de fibres optiques Download PDF

Info

Publication number
EP1061384A1
EP1061384A1 EP99951155A EP99951155A EP1061384A1 EP 1061384 A1 EP1061384 A1 EP 1061384A1 EP 99951155 A EP99951155 A EP 99951155A EP 99951155 A EP99951155 A EP 99951155A EP 1061384 A1 EP1061384 A1 EP 1061384A1
Authority
EP
European Patent Office
Prior art keywords
optical fiber
groove
substrate
core wire
wire part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99951155A
Other languages
German (de)
English (en)
Inventor
Takenori Ichigi
Jungo Kondo
Yoshizumi Nakasuji
Eiji Kitakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP1061384A1 publication Critical patent/EP1061384A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
    • G02B6/3652—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834—Means for centering or aligning the light guide within the ferrule
    • G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834—Means for centering or aligning the light guide within the ferrule
    • G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
    • G02B6/3839—Means for centering or aligning the light guide within the ferrule using grooves for light guides for a plurality of light guides
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3858—Clamping, i.e. with only elastic deformation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3861—Adhesive bonding

Definitions

  • the present invention relates to an optical fiber array formed by fixing a core wire part of a distal end of an optical fiber to a substrate.
  • the optical fiber array has a structure in which a V groove substrate, on which a V groove is formed, and a lid substrate, which is integrally made with the V groove substrate, are equipped, the core wire part, that is made by removing a cover of the distal end of the optical fiber, is mounted on the V groove of the V groove substrate, and the core wire part is pressed from the top surface of the V groove substrate to the V groove by the lid substrate in order to fix it.
  • the optical fiber array of such structure used was those in which the V groove substrate and the lid substrate are formed with the same material and made of a hard material such as glass, silicon, etc. This is for necessity of a hard, undeformable material for precise positioning by arranging a plurality of fibers.
  • the optical fiber may be damaged by an edge of the lid substrate, a starting point of a spot facing (stepped part) formed on the substrate to support a coating part of the optical fiber, and a projection made by finishing condition of the surface of the substrate, when the core wire part of the optical fiber is pressed to the V groove of the V groove substrate with the lid substrate.
  • the present invention was created in consideration of such conventional circumstances and has an object to provide the optical fiber array in that there is almost no damage of the optical fiber caused by pressing the core wire part of the optical fiber to the V groove by the substrate and a possibility of a break, that is caused by the damage, of the fiber is very low.
  • an optical fiber array characterized by having a structure in which a V groove substrate, on which a V groove is formed, and a lid substrate, which is integrally made with the V groove substrate, are equipped, a core wire part, that is made by removing a cover of the distal end of the optical fiber, is mounted on said V groove on the V groove substrate, and said core wire part is pressed from the top surface of the V groove substrate to the V groove by said lid substrate in order to fix it, wherein a resin layer is formed in a part contacting to at least the core wire part of the surface of a side to which the core wire part of said lid substrate is pressed, is provided.
  • An optical fiber array according to the present invention is characterized in that a resin layer is formed in a part contacting at least the core wire part of the surface on a side to which the core wire part of a lid substrate is pressed.
  • a resin layer softer than glass and silicon is formed in the part of the lid substrate, which has a role of fixing by pressing the core wire part of the distal end of the optical fiber to the V groove of the V groove substrate, the lid substrate damages the core wire part less frequently in pressing the core wire part to the V groove to give almost no damage of the optical fiber in the optical fiber array after assembling.
  • occurrence of a break of the optical fiber cause by such damage in assembling is reduced.
  • Figs. 1(a), (b), and (c) are explanatory figures showing an example of embodiments of the optical fiber array according to the present invention.
  • Fig. 1(a) is a planar view
  • Fig. 1(b) is a I-I sectional view of the Fig. 1(a)
  • Fig. 1(c) is a II-II sectional view of the Fig. 1(a).
  • the example, of which only one of the optical fibers has been fixed to the substrate is shown.
  • the optical fiber array according to the present invention comprises a V groove substrate 5 on which a V groove 6 is formed and a lid substrate 4, in the same way as conventional one. On these substrates, a spot facing (stepped part) 7 and 8 are formed on these substrates to support a coating part 3 of an optical fiber 1.
  • the core wire part 2 that is made by removing a cover of the distal end of the optical fiber 1 is mounted on the V groove 6 on the V groove substrate 5, and the core wire part 2 is pressed from the top surface of the V groove substrate 5 to the V groove 6 by the lid substrate 4 in order to fix it.
  • Fig. 2 is an enlarged sectional view showing a fixed condition of the core wire part 2. In such fixed condition, an adhesive agent (not shown) is injected into a space made between the lid substrate 4, the V groove substrate 5, and the core wire part 2 to harden and finally integrally prepare them.
  • a soft resin layer 9 is formed in a part contacting to at least the core wire part 2 of the surface of a side to which the core wire part 2 of the lid substrate 4 is pressed as described above.
  • the optical fiber is not so frequently damaged by pressing the core wire part 2 by the lid substrate 4.
  • the resin layer 9 is formed only in the part contacting to the core wire part 2 by filling the resin in a groove which is made on the surface of a side to which the core wire part 2 of the lid substrate 4 is pressed.
  • the resin layer 9 may be formed on all the surfaces of the side of the lid substrate 4 to which the core wire part 2 is pressed. In this case, although the used amount of the resin increases in comparison with the examples of Figs. 1(a), (b), and (c), preparation is easily carried out, because the groove for the resin layer is not required to make on the lid substrate.
  • hard materials such as glass and silicon are used as like as conventional ones.
  • Using a combination of a conventional hard materials and determining appropriately the thickness of the resin layer 9 allow prevention of falling down of the V groove substrate 5, the lid substrate 4, and the core wire part 2 of the optical fiber 1 by difference in thermal expansion.
  • the lid substrate used has a structure made of a hard material, such as glass and silicon, in that as shown in Fig. 4, only the distal end 10 thereof directly contacts to the core wire part 2 of the optical fiber 1 to press the core wire part 2 against the V groove 6 on the V groove substrate 5, the core wire part 2 is pressed against the V groove 6 by the distal end 10 to fix, the resin is filled in the space 12 made between the core wire part 2 and the lid substrate 4 to harden for formation of the resin layer 9, and after assembling, the distal end 11 of the optical fiber array including the distal end 10 of the lid substrate 4 is removed by means such as cutting or grinding.
  • Fig. 5 is an enlarged sectional view showing a fixed condition of the core wire part 2 in the distal part 11 of the optical fiber array in this manufacturing procedure.
  • Manufacturing the optical fiber array according to the present invention by such a method allows assemblage of the core wire part 2 of the optical fiber 1 with precise positioning in the V groove 6 on the basis of the distal end 10 of the lid substrate 4 made of the hard material in assembling.
  • the distal end 11 of the optical fiber array including the distal end 10 of the lid substrate 4 directly contacting to the core wire part 2 is removed after assemblage.
  • the damaged site is removed to leave no defect in the optical fiber array.
  • the kinds of resin used for the resin layer 9 are not specifically limited, but preferable is that of a low thermal expansion coefficient and a Shore hardness of D80, because the resin layer 9 needs to do no damage to the optical fiber and also to have a sufficient level of hardness to hold the core wire portion 2 of the optical fiber 1 in the V groove 6 after hardening.
  • an epoxy adhesive or the like is enumerated as such resin.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
EP99951155A 1998-11-02 1999-10-29 Reseau de fibres optiques Withdrawn EP1061384A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10312225A JP2000137133A (ja) 1998-11-02 1998-11-02 光ファイバアレイ
JP31222598 1998-11-02
PCT/JP1999/006025 WO2000026708A1 (fr) 1998-11-02 1999-10-29 Reseau de fibres optiques

Publications (1)

Publication Number Publication Date
EP1061384A1 true EP1061384A1 (fr) 2000-12-20

Family

ID=18026700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99951155A Withdrawn EP1061384A1 (fr) 1998-11-02 1999-10-29 Reseau de fibres optiques

Country Status (3)

Country Link
EP (1) EP1061384A1 (fr)
JP (1) JP2000137133A (fr)
WO (1) WO2000026708A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1003057A2 (fr) * 1998-11-19 2000-05-24 Ngk Insulators, Ltd. Support de fibre optique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020068677A (ko) * 2001-02-22 2002-08-28 주식회사 오랜텍 광섬유 블록
DE102011081376B4 (de) 2011-08-23 2021-11-11 Schleifring Gmbh Faser-Array zur Aufnahme einer Mehrzahl lichtleitender Fasern, optischer Kollimator sowie optischer Drehübertrager

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63199206U (fr) * 1987-06-04 1988-12-22
JP3305027B2 (ja) * 1993-01-19 2002-07-22 日本碍子株式会社 光ファイバアレイおよびその製造方法
JP3136870B2 (ja) * 1993-10-12 2001-02-19 日立電線株式会社 光ファイバアレイ及びその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0026708A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1003057A2 (fr) * 1998-11-19 2000-05-24 Ngk Insulators, Ltd. Support de fibre optique
EP1003057A3 (fr) * 1998-11-19 2002-12-04 Ngk Insulators, Ltd. Support de fibre optique

Also Published As

Publication number Publication date
JP2000137133A (ja) 2000-05-16
WO2000026708A1 (fr) 2000-05-11

Similar Documents

Publication Publication Date Title
JPH09120014A (ja) 光ファイバアレイ
JP3398225B2 (ja) 光ファイバ整列体
JPH11344637A (ja) 光ファイバ―アレイ
EP1486806A4 (fr) Substrat pour reseau de fibres optiques et son procede de production
EP1061384A1 (fr) Reseau de fibres optiques
EP1139131B1 (fr) Matrice de fibres optiques
EP0926520A2 (fr) Matrice de fibres optiques
EP1003057A2 (fr) Support de fibre optique
JP3466285B2 (ja) 光ファイバ整列体
US20040165854A1 (en) Optical fiber array and substrate for the optical fiber array
US6798969B2 (en) Fiber array, method for fabricating the same and optical device using the fiber array
JP3323005B2 (ja) 光ファイバ整列体
JP2000155232A (ja) 光ファイバアレイの製造方法
JP2000275479A (ja) 複数段ｖ溝を有するｖ溝基板及びその製造方法
JP2014531987A (ja) 異なる剛性の２つの層を備える構造体において機械的作業を実施する方法
JP3426861B2 (ja) 光ファイバ整列体
WO2000026707A1 (fr) Reseau de fibres optiques utilisant un substrat couvercle en resine
JP2007163604A (ja) 光部品
JP2005258051A (ja) 光ファイバアレイ及び光ファイバアレイ用基板
JP2843256B2 (ja) シリコン半導体ウエハの切断方法
JPH0894857A (ja) 光ファイバ整列体
JPH06118262A (ja) 光ファイバアレイ及びその製造方法
JPH11305058A (ja) 光ファイバアレイ
JP2000098152A (ja) 光導波路素子
JP2000137146A (ja) 光ファイバアレイとその製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000719

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20020404

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT NL